Loom shuttle



Aug. 27, 1935. G. c. BEATRICE I 2,012,534

LOOM ,SHUTTLE Filed April 25, 1935 INVENTOR.

(-3 AAAA EL C. BEATRICE...

ATTORNEY.

Patented Aug; 2 7, I

; ri e;

The presenti nventi'ompertains to automatically" threading 1 cm shuttles an d h asmoreiparticuslar reference to such shuttlesadapted to thread autow man-tally With either right; Ghlfii'Wihd? filling:

. Shuttles of the: typementioned; *as' heretofore devisedhave commonly been 'ofth'e so-call'edi center threading construction e r'ei' n 1 a threadingbfcek is; pr ovide'd with an outer thread guard and with l ITIRQI guardingmembers I having: hetwe'en thematthreadingysloiswhiciw -is disposecfcentrally with-respect o the longitudinal threadpassage the threads-n block: ifng thread} oecasihnal'ly escapes i rom heneathztl re enter thread guard dug rig the second pick atteir a transfer," attime a centrally disposed threading sloteperm'its the fill-ing jto. escape from a the thread guarding mmbers and thus Ib'ecome completely nit-threaded; 7

7 both" to faeilitate the t;

w The present myenti'on has for" 1 its obj'ect/ the modification ofi thre'ad guarding members and the threading slottherebetween a ding o'peration with g and also to prevent tin-threading when the fiiflmg escapes 't'ronr such outer" thread guardtas maybe priox'lidedi threading shuttle wherein inner thi e'ad guard i' g me bers areeonstituted hy firigersi havingza V threa-eii gslbtbetween ther-n preferably-em tends at an acute angle to the longitudinal axis of-theshuttle. the prefer-reek enibodimendthe outerend-of thetir'readhfig lot opens iria direcfti'o'nlateraiiyot'the-longitf a1 Mead-passage), for a urpese Whee m V explained}, and 'the top"stud ace at 'eachof the thread guarding' fingers is curved outwardly and downwardly so as to facilitate the threading operation with 7 either right or left hand wind filling.

Fig. 1'; and i V Fig. is a cross-sectional view taken approxi-' mately on line 4440i Fig. 3. v 1

N The said preferred embodiment of theinvention is illustrated of which:

Fig. 1 is a plan View of the end o'f a shuttle 5 containing the threading block,-the filling being .of right hand wind; p

Fig. 2 is a view similar toFig. 1 but showing left hand Windfilling; e v v V p l y r Fig: 3 is a. view-showing the threading block in a cross-section approximately on line '3 3 of The shuttle shown on the drawing includes a body Lgenerally of conventional construction,- having a cavity 2 for the receptionfof a filling carrier, as bobbin'3. The shuttle is of-thetype provided; -,Witl1'=jfront wa lh Sfan'd rear wall-l de endg'l *ve' provided: an automatically .thread;passage'at theendof the first 'tpi V e onlbeginningiofi the second pick; Ea'rtl-ya f I because the'outer thread uard does; notal vvays on the accompanyingdrawing,

that threads automatiica withinltwe: picksaiter thetraznsie'r to thfeacavity} or? a fresh filling fcaririemfAt, theatim "of:- such transiem: theshuttle i boxed: withits threading; end 4, (hereinafter ealIed the; ,cuteiiflxendo pointing; outwardly; or f a awayfrom theishectfinot shown) and the fillingend fextendstfizom thabobbin longitudinally outwardly ptvardly immediately I above the shuttle. the-first pick afiteryjtranster filling ,Thenthreadingihlock 6r tea i nvjstm. is

a; longitudinal thread; passage 85,- the threadmgi blochzbeing, seated in a recess m the shuttle hodyisotthata the: axisot the thread pas}- sage: at least"approximately eoincides:withgth longitudinal-(axis of'the shuttle and t tra-11., the I ,threadingrgblhckt istprovidedwith; a thread guard evemh -t outer, endof. he; thread ass e; 7 h thl e'adi guardtshown; being comprisedofa-front horn 9 and an overlappingjguarqd H]; I 'outergthread guard just ea t be known in the art and: is widely-used.

maybe i stated:v that-thefunction Qfj le guardis ito prejemeritus intended eiunctioh jiw limy ifi w of thedesirability"ofmeans for assisting, in the threading ofthe filling beneath the outer thread guard,supplementalthreading' and thread guard ing means-are positioned inwardly of theshuttlej f from the outer thread guard. q k 7 4 V My invention provides inner thread guarding member's comprised of apair'of fingers ll and l2i which extend; respectively, from the front and rear Walls 6 and! of thethreading block atthe inner end'of the threadpassage 8 androverliesuclfi I n f passage. The finger'sare constructedsothatrthef threading block threads equally well with-eitheri," right hand wind fi llin'g, Fig. 1, or left hand wind j' filling, Fig. 2, While still positively guardin against; j "complete unthreading when, as in Fig. 2; the fill-T ing escapes from beneaththe outer threadguard.

Insofar as I am aware, this result hasinotjbeen i" I heretofore,accomplished.

"Ihe fingers U and IZexten'd fromthe opposite 4 i walls into proximity to eachotherand' thencei-ti Q relative to the inner end l4 and opens in a direc extend generally outwardly longitudinally of the thread passage, the fingers as shown extending approximately horizontally; The contiguous re-' I lationship of the fingers provides between them a 7 relatively narrow threading slot l3 which extends at anacute'angle to the longitudinal axis of the The slot is open at bothits ends. 7. The

shuttle. V V inner end [4 of the slot' opens.longitudinally of -the shuttle; i. e. toward the cavity2 and may be.

flared as shown on the drawing. The outer .end l5 of the slot is'displaced laterally of theshuttle tion. laterally of the: thread passage. It will .be apparent thatthe partially threaded filling cannot be lifted out; of the threadpassage'through the inclined, laterally openingsloflbe'cause when the? filling isllifted as in Fig. 2 it will necessarily pass eitherin front o fethefinger H or, to the rear of; i the finger I2 and will run in such position until 'it automatically rethreads.

I *"fEa'ch'of the fingers and it has its top ime curved outwardly and downwardly, asshown more clearly by Figs. 3and 4. The filling end jis shown by Fig'll to be in the position it assumes at the beginning of; the first pick after transfer; The

movement-6f the filling in unwinding from the, bobbin-issuch that it is thrown or pulled down- Y wardlyiontotheeurved tops of the thread guarding-fingersand thence through the threading slot [3 Tinto the' th ead passage '8 The manner of i threading is substantially identicalwhether the filling "right? orleft hand wind, and this fease of threading "is accomplished without detracting from the eflicacy of the thread guarding feature .of thejfinge fs. v t Intheparticular embodiment shown'on the t drawing,"the='inner end 114" of the threading; slot is positioned forwardly of the longitudinal axis of a the shuttle and the slot extends outwardlyand 7 rearwardlytorcause. the outer end thereof to?be positioned rearwardly' of the axis of the. shuttle.

Obviously," it is; not of paramountimportance which: end of the slot positionedjforwa'rdly and V which end rearwardly ofthefaxisof the shuttle It will likewise beappa'rent that the i invention is not-restricted to the exact shape of fingers and v threading slot shown;

Having fully discl" sed the preferred embodi *inentofinyinvention; I claim:

= an: automatically threading 160m shuttle having a threading block adapted'to thread automatically with either right-orleft hand wind fill-Q] ting,- said threading. block having a longitudinal thread passage, a thread gu'ard at the outer end jof said'thread passage, and opposed thread guarding ngers positioned inwardly of theshuttle from said thread guard, said'fing'ers overlying said thread p'assage'and being spaced to provide a thread guard overhangng the outer end of said thread passage, and a pair of thread guarding fingers inwardlyof the shuttle from said thread guard and overlying said thread passage, said fin- Igersextending respectively from opposite of said walls and generally longitudinally outwardly in contiguous relation-to each other, said fingers i defining between them'a threading slot which extends at 'an acute angle tothe longitudinal axis of the, shuttle and the outer end'of which slot is "openziinaidirection laterally of said thread passage. a v t:

3., An automatically, threading '7 loom shuttle having athreading block adapted to thread automatically with eitherright or left hand windfilling, said threading block having frontand rear walls defining ,a longitudinal threadpassage, a

thread guard overhanging the outer 'end of said thread,.passage, and a pair of thread guarding fingers inwardly of the, shuttle from said thread 7 guardandloverlying said thread passage, said fingers extending respectively from opposite of saidwalls and generally longitudinally outwardly,

in contiguous relation to eachother, said fingers defining between them a threading slot theinner end ,ofwhich opens in a direction inwardly of the shuttle and the outer end ofwhich opens in a direction laterally of said thread passage. H A. An automatically ,threadingloom shuttle having a threading block adapted to thread automatically with either right or left handwind fillingfsaidthreading block having a longitudinal Y thread passage, a thread guard at the outer end of said thread passage, and opposed thread guarding fingers positioned inwardly of the shuttle from said thread, guard,-said fingers, overlying said thread passageand being. spaced: to provide a end, ofsaid, slot opening ina direction laterally of said thread passage .to thereby guard against unthreading ofithefilling.

GABRIEL CHARLES BEATRICE;

' threading slot between'thern,-.the top surface of each ,of said fingers being curved outwardly and downwardly to facilitate threading and the outer 

